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The volume of a sample produced (including 0.1089 g of AgCl) is 50.00 mL. If the standard deviation of your pipet is 0.018 mL, what is the chloride concentration ppt (W/V) of you sample? (include a standard deviation in your result) The standard deviation for the electronic balance used to weigh the AgCl is 0.15 mg.
Commercial grade hcl are typically 39% by mass HCL in water. determine mole fraction of HCL has solution has density
he reduction table in your notes, calculate the standard cell potential for the following reactions. 2 Al3+(aq) + 3 Pb(s) 2 Al(s) + 3 Pb2+(aq)
Marble (calcium carbonate) reacts with hydrochloric acid solution to form calcium chloride solution, water, and carbon dioxide. What is the percent yield of carbon dioxide
What is the rate constant of a first-order reaction that takes 343 seconds for the reactant concentration to drop to half of its initial value?
Solar furnaces are designed to focus sunlight (say, with a parabolic mirror ) onto a relatively small area. given that the surface temperature of the sun is about 600K.
How much heat is evolved when 1259 g of water condenses to a liquid at 100°C? ΔHcond = -40.7 kJ/mol.
Consider a saturated solution of Zinc arsenate, Zn3(AsO4)2, in which the following reactions can occur: Zn3(AsO4)s (s) --> 3Zn+2 + 2AsO4 -3 Ksp=1.0e-27 AsO4 -3 + H2O ---> HAsO4 -2 + OH- Kb1=3
what is the theoretical (or calculated) yield of NH4 Al (SO4)2 * 12 H2O formed from 1.872 g of Al(OH)3?Assume all other reagents are in excess
The indicator propyl red has Ka = 3.3 × 10-6. What would be the approximate pH range over which it would change color?
what are the possible sources of error when finding the density of a liquid and of a solid? what can be done to avoid these errors?
A cube of a silver-colored metal with a volume of 64 cm3 has a mass of 672 g. The density of pure silver is 10.5 g/cm3. Is the metal pure silver?
One method used to store energy during times of low demand is by pumping water uphill into a reservoir. When energy demand exceeds the output produced by power plants
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